In the video shown below, you’ll see researcher Jani Ollikainen use his hand to adjust the music player’s volume, without ever touching the hardware. Even with an object in his way (like your pants pocket or even a wood door), the radar works without a hitch. In the second demo, you’ll see fellow researchers Terhi Rautiainen and Risto Kaunisto measure the distance, speed, and direction of a human walking.

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